Aweakness of the articles of confederation was its failure to
a. establish a national legislature.
b. require unanimous consent to pass amendments.
c. allow each state one vote in congress. d. create a mechanism to enforce state cooperation.

The correct answer is D) Create a mechanism to enforce state cooperation.

The Articles of Confederation was America's first constitution as a new independent nation. This constitution was extremely ineffective, as it had a weak federal government that had no legitimate power over state governments. For example, when raising a national army, states had the option on whether or not they would send soldiers for the cause. This lack of control over the states resulted in disunity and disorganization. Ultimately, this constitution would be replaced by the US Constitution.

c. troops marched forward in close formation against newer, more accurate weapons